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Finding the Fourth Proportional to 21,798.72, 32,698.08 and 6,217.56

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Solution

The fourth proportional to 21,798.72, 32,698.08 and 6,217.56 is: 9,326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.72 : 32,698.08 = 6,217.56 : x
  2. Step 2: Convert to fraction form
    21,798.72/32,698.08 = 6,217.56/x
  3. Step 3: Cross multiply
    21,798.72x = 32,698.08 × 6,217.56
  4. Step 4: Simplify right side
    21,798.72x = 203,302,274.28
  5. Step 5: Solve for x
    x = 203,302,274.28/21,798.72
  6. Step 6: Final answer
    x = 9,326.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.